The National Institutes of Health, through the National Institute on Drug Abuse, is seeking small businesses capable of maintaining the NIH Brain Development Cohorts Biobank, which processes, stores, analyzes, and distributes biological samples from the ABCD and HBCD studies. Interested vendors must demonstrate experience managing a large biobank with over 550,000 samples initially and the ability to receive approximately 170,000 additional samples over the contract period. Capabilities required include sample and data management, laboratory expertise, technical and informatics support, and collaboration with study teams and data centers. No specific budget amount or performance location is mentioned in this sources sought notice. Responses are due by 1:00 p.m. EST on July 2, 2026.